The Pin,quick Release, cataloged under National Stock Number 5315-01-071-3532, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-071-3532 |
| Primary Part Number | GP51OR-A4L27 |
| Item Name | Pin,quick Release |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.2470 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN |
| Actuation Method | PUSH BUTTON |
| Detent to Tapered End Distance | 0.220 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Detent Quantity | 2 |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TY 2,CL 2 FED SPEC 2ND TREATMENT RESPONSE SHANK |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TY 2,CL 2 FED SPEC 2ND TREATMENT RESPONSE SPINDLE |
| Actuation Type | PUSH |
| Pin Attachment Type | RING |
| Style Designator | L HANDLE |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE SPINDLE |
| Material Document and Classification | MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE SHANK |
| Grip Length | 2.700 INCHES MINIMUM AND 2.720 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR CADMIUM AND CHROMATE SPINDLE |
| Surface Treatment | CADMIUM OR CADMIUM AND CHROMATE SHANK |
| Pin Center to Handle End Distance | 1.450 INCHES MINIMUM AND 1.550 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 SHANK |
| Material | STEEL COMP 4130 SPINDLE |
| Shoulder to Head End Distance | 1.290 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| GP51OR-A4L27 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 50921A4L27R | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-01-071-3532 is a Pin,quick Release, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-071-3532 has 1 manufacturer part number on file: GP51OR-A4L27 (Northrop Grumman Systems Corporation).
Key specifications for GP51OR-A4L27: Shank Diameter: 0.2470 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN; Actuation Method: PUSH BUTTON; Detent to Tapered End Distance: 0.220 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN; Detent Quantity: 2. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.